<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>动态组件与v-once指令</title>
	<script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
	<div id="app">
		<!-- 动态组件 -->
		<!-- <component :is="type"></component> -->
		<child-one v-if="type === 'child-one'"></child-one>
		<child-two v-if="type === 'child-two'"></child-two>
		<button @click="changeBtn">change</button>
	</div>
	<script type="text/javascript">
		Vue.component('child-one', {
			template: '<div v-once>child-one</div>'
		})

		Vue.component('child-two', {
			template: '<div v-once>child-two</div>'
		})

		var vm = new Vue({
			el: '#app',
			data: {
				type: 'child-one'
			},
			methods: {
				changeBtn: function () {
					this.type = this.type === 'child-one' ? 'child-two' : 'child-one' 
				}
			}
		})
	</script>
</body>
</html>